Convert Round Duct Size To Rectangular

Include fittings in the duct tel enter either.

Convert round duct size to rectangular.

This is a handy tool when deciding what size duct you want to use for your application. This can be found by multiplying the two adjacent sides of the rectangular duct. The table below can be used to compare equivalent diameters for rectangular and round circular ducts. Equivalent duct calculator round vs rectangular.

Provided here is the rectangular duct sizes chart for your personal reference and this chart table shows the duct size cfm and their equivalent diameter in inches. Multiply this number by 3 14 pi to get the area of the round duct in square inches for example 16 x 3 14 50 24 square inches. Gustafson g 0 single wall round rectangular to round conversion de 1 30 ab 0 625 a b 0 250 a length of one side of rectangular duct inch b length of adjacent side of rectangular duct inch de circular equivalent of rectangular duct for equal friction and capacity inch source. When a designer sees rectangular duct on a drawing they should convert it to an equivalent round size if possible.

Step 5 select a size of square duct that has the same area. Measure one side of the duct from top to bottom then measure the bottom of the duct from left to right if the duct is square or rectangular. Friction rate velocity friction rate. Approaches the efficiency of round duct.

The rectangular dimensions and the air flow volume are adapted to the equal friction loss. Duct work is otherwise called as duct system. Friction loss calculator for flexible ducts. Use the calculator to add these two measurements together and multiply by two.

2001 ashrae fundamentals p. An aspect ratio of 1 is round duct. I want to calculate. This tells you the length of the perimeter of the duct.

Use a measuring tape that measures in inches. Convert rectangular duct to round equivalent. The table is based on the ducts friction loss formula. The length of the rectangular duct size would range from 0 7mm to 0 9mm galvanised mild steel depending on size.

Friction loss calculator for sheet metal ducts. Flex duct 05 on most metal duct calculator round metal pipe 06 on most metal duct calculators field duct sizing chart rectangular sheet metal duct 07 on most metal duct calculators. Other hart cooley mobile tools. Convert diameter to rectangular equivalent.

Convert round duct size to rectangular duct size for equivelant airflow.